It could be that the epoch is the start of 2003, so any train with a reset week counter shows 2003, and now they all do since the counter has overflowed late last year.
The fact that they use a week counter in general is something I remember from someone familiar with the onboard computer system, but I don’t remember how it’s set up specifically unfortunately.
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Well, I did shown_date-1024 weeks=epoch. Your explanation sounds correct, though.
The only thing is, I’ve seen 2003 date before 2023 in random trains. Could also be a weird glitch when time sync fails or something.
It could be that the epoch is the start of 2003, so any train with a reset week counter shows 2003, and now they all do since the counter has overflowed late last year.
The fact that they use a week counter in general is something I remember from someone familiar with the onboard computer system, but I don’t remember how it’s set up specifically unfortunately.